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Add building z-limit function to shader and web ui (#462)

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This commit is contained in:
Izumi Kawashima
2017-12-26 17:04:47 +09:00
committed by Emux
parent 0367507dae
commit abac84e82a
6 changed files with 125 additions and 6 deletions
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7
vtm/resources/assets/shaders/extrusion_layer_ext.glsl
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@@ -5,6 +5,7 @@ uniform mat4 u_mvp;
uniform vec4 u_color[4];
uniform int u_mode;
uniform float u_alpha;
uniform float u_zlimit;
attribute vec4 a_pos;
attribute vec2 a_light;
varying vec4 color;
@@ -13,7 +14,11 @@ const float ff = 255.0;
void
main(){
// change height by u_alpha
gl_Position = u_mvp * vec4(a_pos.xy, a_pos.z * u_alpha, 1.0);
float height = a_pos.z * u_alpha;
if (height > u_zlimit) {
height = u_zlimit;
}
gl_Position = u_mvp * vec4(a_pos.xy, height, 1.0);
// depth = gl_Position.z;
if (u_mode == -1) {
;